diff --git a/doc/src/pg_input.rst b/doc/src/pg_input.rst
index ad1e1ec92e..72fdd93578 100644
--- a/doc/src/pg_input.rst
+++ b/doc/src/pg_input.rst
@@ -5,6 +5,3 @@ LAMMPS Input Base Class
       :project: progguide
       :members:
 
-.. doxygenfile:: input.cpp
-      :project: progguide
-
diff --git a/doc/src/pg_lammps.rst b/doc/src/pg_lammps.rst
index 2966af24dd..efa282e33a 100644
--- a/doc/src/pg_lammps.rst
+++ b/doc/src/pg_lammps.rst
@@ -20,5 +20,3 @@ module.
    :project: progguide
    :members:
 
-.. doxygenfile:: lammps.cpp
-   :project: progguide